127660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 289296

約数和(自身を除く): 161636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491, 982, 1964, 2455, 4910, 6383, 9820, 12766, 25532, 31915, 63830, 127660]

約数ペア:

[(1, 127660), (2, 63830), (4, 31915), (5, 25532), (10, 12766), (13, 9820), (20, 6383), (26, 4910), (52, 2455), (65, 1964), (130, 982), (260, 491)]